Improvement in sash-lock



GQMQGREGOR & G. VOLL. SASH LOGK-.

No. 88 ,318. Patented Mar. 30, 1869.

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dnitd fitatee GEORGE MCGREGOR AND GEORGE VOLL, OF CINCINNATI, OHIO.

Letters Patent No. 88,318, dated Ma/rch 30, 1869.

maovnmnnr It: SASEI-LOCK.

The Schedule'referzed to in these Letters Patent-and making part or the same.

To all whom it may concern.-.

Be it known that we, Gnoncn MoGnncon and GEORGE VoLL, of Cincinnati, in the county of. Hamilton, and State of Ohio, have invented a new and useful Sash-Lock; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawings, in which-- Figure 1 is a plan view of our sash-lock, secured to the top and bottom rail of the upper and lower sash for windows a Figure 2, a vertical section of the same, taken in the line a: .x of fig. 1'; and

Figures3, 4, and. 5, are detail views.

The nature of our invention consists in the'peouliar construction and arrangement of a sash-lock, by means of which both the upper and lower sashes of a window are securely held closed, and at the same time the two meeting rails are kept closely together, thus preventing any vibration of the same.

To enable those skilled in the art to make and use our invention, we will proceed to describe its construction and operation.

A represents the top rail of the lower sash, and

B, the lower rail of the upper sash.

0, the base-plate of the lock, which is screwed on to the top of the rail A.

D is a circular hollow case, which-rests on the baseplate 0. 1

a is a hollow shaft, which is a part of the baseplate 0.

In the top ofthe case D is an opening, through which the upper end of the hollow shaft a passes.

The case D is held on the base-plate -O by means of the bolt b, which passes through the hollow shaft a, and is riveted to the plate 0, the case D being allowed to play freely around the said hollow shaft.

E is a hollow arm, which is anextension of the case D, in which is placed the bolt F.

Inside of this hollow arm E, and'around the bolt F, is a spiral spring, d, one end of which rests against the outer end of the arm E, and the other, against a pin passing through the bolt F.

0n the base-plate O is a segment, 0, against which the end of the bolt F rests.

Inside of the case D, and around the hollow shaft (1, is a coil-spring, e, the ends f g of which are turned outward, .the end, f, resting against the leg h, on the By making it in this form, .it is secured, both to the' top and side of the meeting rail of .the upper sash, the screws entering at right angles to each other, thus securing it firmly.

Its operation is as follows:

When the sash is unlocked, the arms E and G are parallel to the edges of the meeting-rail of the lower sash.

Tolock the sash, take hold of the outer end of the bolt F, and,- by turning it towards you, the arm G is thrown around over the top of the meeting-rail of the upper sash, passing under the catch H and the projection i on the 'said arm, passing outside and against the said cam-shaped catch, as seen in fig. 1, thus drawing the two sashes closely together. I,

' As soon as the inner end of the boltF has passed the end of the'seginent c, it is forced inward by the spring d, thus securely locking the sash. To unlock it, draw out the bolt F until its inner end reaches the outside of-1she segment 0, when the spring 0 throws the bolt and arm E and G back into their former positions.

Having thus fully described our invention, 1

What we claim as new, and desire to secure by Let ters Patent, -is a In a sash-bolt, the arrangement and combination of the base-plate O with the segment 0 thereon, case D spring-bolt F, arm G, and catch H, as shown and de scribed, for the purpose specified.

GEORGE MCGREGOR. GEORGE VOLL. Witnesses:

BEN. MCG-REGOB. Hownnn Douennss. 

